2015 GMC Sierra Denali Technical Service Bulletins

1,815 technical service bulletins (TSBs) are on record for the 2015 GMC Sierra Denali. TSBs are notes manufacturers send to dealers about repair procedures for issues seen in the field. They are not recalls and do not by themselves mean a vehicle has a fault.

• 10125963Jun 19, 2014Fuel system, Transmission and drivetrain. This Preliminary Information communication provides information to the technician about vehicles that have not engagement into drive, delayed, no engagement into reverse, and or a range inhibit. Technician may find Diagnostic Trouble Codes P0701, P0731, P0732, P0733, P0734, P0736, P0751, P0756, P0761, P0776, P0843, P0848, P0873, P0877, P0894 or P2723. Technician should follow published Service Information…
• 10126291Jun 18, 2014Visibility (wipers, defrost, mirrors). This preliminary bulletin provides a procedure on how to reset the power folding mirriors after they been folded manually, to fix the customers concern of the mirriors shaking or fluttering at normal driving speeds.
• 10125956Jun 16, 2014Equipment. This Preliminary Information communication provides information to the technician about vehicles that may not receiving all channels on the XM band. Technician will need to use a scan tool and verify current Digital Radio Receiver Status under Data Display. Technician will need to look at the second line labeled Digital Radio Receiver Status will display a number of 00 - 04. Technician will repair per the status…
• 10125954Jun 16, 2014Engine, Transmission and drivetrain. This Preliminary Information communication provides information to the technician about vehicles that may have a rough idle and/or a vibration at idle in gear. Technician will need to try centering the engine and transmission mount. For vehicles built before 07/01/2013 if no change the shim to the right engine mount 2 most inner bolts 3mm.
• 10125953Jun 16, 2014Equipment. This Preliminary Information communication provides information to the technician on the programming and activation of the OnStar system. For many 2008 and prior model year GM vehicles, the programming is performed using the Tech 2 and the activation is initiated by a Service Programming System.
• 10126280Jun 13, 2014Equipment. This preliminary bulletin provides a information to the dealer for the requirements need for equipment.
• 10126278Jun 12, 2014Equipment. This informational bulletin provides the dealer with information on what to do when requesting a new key code for the customer.
• 10125945Jun 12, 2014Back-over prevention (rear camera), Equipment, Electrical system. This Preliminary Information communication provides information to the technician on the steps to diagnose and repair vehicles that may have intermittent and hard to duplicate Rear Camera blank, distorted, or fuzzy. Also no radio, OnStar, or speech audio and the volume is unable to be adjusted from the integrated center stack or the steering wheel controls. The driver information center will show ?No Audio? in…
• 10125942Jun 10, 2014Electrical system, Transmission and drivetrain. This Preliminary Information communication provides information to the technician about vehicles that have not engagement into drive, delayed, no engagement into reverse, and or a range inhibit. Technician may find Diagnostic Trouble Codes P0701, P0731, P0732, P0733, P0734, P0736, P0751, P0756, P0761, P0776, P0843, P0848, P0873, P0877, P0894 or P2723. Technician should follow published Service Information…
• 10126275Jun 5, 2014Equipment. This information bulletin provides dealers with more information on how to better prep a vehicle for pre-delivery.
• 10125937Jun 5, 2014Equipment, Electrical system. This Preliminary Information communication provides information to the technician about vehicles equipped with a manual Heater-Vent-Air Conditioning Regular Production Option Code C67 with the concern of after turning the A/C compressor off during the previous ignition cycle, it turns back on by itself on the next ignition cycle. Please communicate to the customer this condition is a normal operating characteristic…
• 10125934Jun 4, 2014Fuel system. This Preliminary Information communication advises the technician that the Diesel Oxidation Converter part numbers 15231895, 22768282, 22770967, 22887212, 22893734 and 22977171 will be placed on a parts restriction through the General Motors Product Quality Center. Dealer will need to contact General Motors Product Quality Center for further assistance.
• 10125933Jun 3, 2014Transmission and drivetrain. This Preliminary Information communication provides information to the technician about vehicle that have a Malfunction Indicator Lamp on. Technician may find Diagnostic Trouble Codes P0601, P0603, P0604, P062F or P1621 stored in the Transmission Control Module. Technician will need to ensure that the Diagnostic Trouble Codes are set in the Transmission Control Module. If the Diagnostic Trouble Codes are only set…
• 10137937May 30, 2014Tires. This informational bulletin provides explanation on using the tire sealent in the GM kit as a temporary fix only untill the tire can be properly repaired under the new tire warranty.
• 10137935May 29, 2014Engine, Transmission and drivetrain. This informational bulletin provides a process to the service agents that are not required to contact PQC, to determine when to replace a assembly as opposed to repairing and if an engine or transmission is being returned, that it has all the information in relation to that part being returned.
• 10137934May 29, 2014Engine cooling, Transmission and drivetrain. This informational bulletin provides information to the technician on what parts of an engine or transmission will require the PQC to be notified.
• 10137932May 28, 2014Electrical system, Equipment. This warranty bulletin explains how to use the EL-50313 Midtronic GR8 Battery tester to test a battery and determin if it is warranty or not.
• 10137928May 22, 2014Equipment, Tires. This informational bulletin explains a normal condition of new tires may shake and vibrate for the first few miles.
• 10137927May 22, 2014Equipment, Tires. This informational bulletin provides the technician with information on tire radial force variations and how to balance a tire using the balancer.
• 10137919May 19, 2014Equipment. This informational bulletin helps the technician quick reference repairs to bulletins as opposed to replacing parts that may be un necessary.
• 10137918May 19, 2014Electrical system, Equipment. This informational bulletin explains if the fuse is open when the customer plugs in the trailer, that it may be the cause if diagnostics finds no problems to that point.
• 10137914May 16, 2014Equipment. This informational bulletin provides tips on how to care for the interior of the vehicle using products.
• 10112057May 6, 2014Equipment. This Preliminary Information communication provides information to the technician about vehicles that the radio display does not always return to the previous source screen when a Bluetooth call has ended. Dealer should communicate to the customer this condition is a normal operating characteristic of their vehicle.
• 10137890May 2, 2014Equipment, Transmission and drivetrain, Engine cooling. This informational bulletin provides information to the technician on what parts of an engine or transmission will require the PQC to be notified.
• 10246505May 1, 2014Other or unknown, Electrical system. Unable to Clear BCM DTCs After Completing Repair
• 10245975May 1, 2014Equipment. Radio Touchscreen Inaccurate or Difficult To Use.
• 10135235Apr 30, 2014Electrical system. This informational bulletin provides information for an available BCM calibrations that would restore bulb outages when using a second stage manufacturer
• 10111838Apr 30, 2014Engine. This Preliminary Information communication provides information to the technician how to diagnose and repair a vehicles with an engine that runs with an intermittent crank no start with a Diagnostic Trouble Code P0011 or P00C6 current or history. If the vehicle is a crank no start, perform PIE0295.
• 10135227Apr 28, 2014Equipment. This informational bulletin provides information to the dealers on properly maintaining vehicles in inventory.
• 10111832Apr 25, 2014Brakes, Other or unknown, Equipment. This Preliminary Information communication provides information to the technician that a customer may request the factory Integrated Trailer Brake Control be bypassed and their aftermarket trailer brake controller be installed instead. Technician will need to gain access to the X185 or the X138 connector (varies with vehicle build; refer to Service Information) near the underhood fuse block, terminal 32.
• 10111831Apr 25, 2014Back-over prevention (rear camera), Equipment. This Preliminary Information communication provides information to the technician on the steps to diagnose and repair vehicles that may have intermittent and hard to duplicate Rear Camera blank, distorted, or fuzzy. Also no radio, OnStar, or speech audio and the volume is unable to be adjusted from the integrated center stack or the steering wheel controls. The driver information center will show ?No Audio? in…
• 10135222Apr 22, 2014Equipment. This informational bulletin explains how to cut a new key or how to get a precut key from GM.
• 10135219Apr 22, 2014Exterior lighting. This informational bulletin explains condensation in exterior lights and replacment guidelines for warranty replacement.
• 10135218Apr 22, 2014Equipment. This informational bulletin is to assist with the identification of issues that are not considered warrantable.
• 10111819Apr 22, 2014Electrical system. This Preliminary Information communication provides information to the technician about vehicles that have the outgoing end of a Bluetooth call may have static that lasts for a short period of time when beginning a Bluetooth call, or when transferring a phone call from a handset to handsfree using the vehicle?s Bluetooth. Dealer should advise the customer the first 5-10 seconds of audio quality after the transfer…
• 10111818Apr 22, 2014Engine. This Preliminary Information communication advises the technician that the 2010 through 2015 6.6L Duramax Diesel Engine Fuel Injection Pump Part numbers 12645102, 12658095 and 12661059 will be placed on a parts restriction through the General Motors Product Quality Center. Dealer will need to contact General Motors Product Quality Center for further assistance.
• 10111817Apr 22, 2014Electrical system, Engine cooling. This Preliminary Information communication provides information to the technician about vehicles that may have a low coolant light and/or Driver Information Center message may come on with the coolant level at the correct level. Technician will need to inspect and repair any damage wires any the reservoir connector. If the sensor connection and terminals are okay follow any Service Information documents that…
• 10111813Apr 18, 2014Electrical system. This Preliminary Information communication provides information to the technician about vehicles that have the outgoing end of a Bluetooth call may have static that lasts for a short period of time when beginning a Bluetooth call, or when transferring a phone call from a handset to handsfree using the vehicle?s Bluetooth. Dealer should advise the customer the first 5-10 seconds of audio quality after the transfer…
• 10111811Apr 18, 2014Electrical system, Equipment. This Preliminary Information communication provides information to the technician about vehicles that have an OnStar system that will not power up. Technician should turn off the ignition and cancel retained accessory power. After the vehicle has powered down remove power to the OnStar module for five minutes. After the power has been removed for five minutes, if the OnStar system is working release the vehicle.
• 10111810Apr 17, 2014Equipment. This Preliminary Information communication provides information to the technician about installing General Motors Accessory pats. Technician can check Service Information for some accessories. Technician can also contact Partect for assistance. Technician can also contact Techline Customer Support Center for programming issues.
• 10135208Apr 15, 2014Visibility (wipers, defrost, mirrors). This preliminary bulletin provides a repair to replace the windshield to fix the customers concern of the inside rearview mirrior loose or fell off with bracket.
• 10135201Apr 14, 2014Equipment. This information bulletin provides the technician with additional information on fixing the vehicle right the first time by listing possible concerns to specific vehicles.
• 10135199Apr 14, 2014Fuel system. This preliminary bulletin provides a procedure to test and replace if necessary, the fuel pump to correct the customers concern of the MIL on.
• 10111792Apr 8, 2014Equipment. This Preliminary Information communication advises the technician that the Human Machine Interface, Radio or Tuner, radio controls, Integrated Center Stack, display, and Media Disc Players are placed on restriction through the General Motors Technical Assistance Center. Dealer will need to contact General Motors Technical Assistance Center for further assistance.
• 10111791Apr 8, 2014Body and structure. This Preliminary Information communication provides information to the technician about vehicles that may have a whistle noise in the vehicle from the driver or passenger side. Technician will need to inspect for voids in the body sealer on the left or right side A-pillar. Technician should also inspect for voids in the body sealer at the cowl seam.
• 10135193Apr 7, 2014Equipment. This preliminary bulletin explains the proper way to update and complete the IPC updates
• 10111787Apr 7, 2014Equipment, Electrical system. This Preliminary Information communication advises the technician on the location of the blunt cut wires for the roof beacon light. Technician can find the wires located directly above the overhead roof console.
• 10111786Apr 7, 2014Body and structure. This Preliminary Information communication advises the technician vehicle equipped with Regular Production Option Code UY2 the location of the 5th wheel harness was relocated. Starting with the 2015 model year, the location has changed to the rear of the pickup box ? forward of the rear bumper and attached to the rear frame cross member.
• 10111785Apr 4, 2014Engine cooling. This Preliminary Information communication provides information to the technician about vehicle that may have black smoke on a cold start. A dual-pulse injection strategy is utilized during engine cold start to reduce the time required to bring the catalytic converter up to operating temperature. This split injection strategy lasts for about 60 seconds on cold start. This process may cause the customer to see…
• 10111783Apr 4, 2014Fuel system. This Preliminary Information communication provides information to the technician about vehicles that have an oil leak shortly after a cold start when extremely low ambient temperatures are present. Technician will need to clean the area of the oil leak, clean and dry the PCV hoses, and replace the oil fill cap with part number 12589430.

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